Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Nucleation primary, categories

Nucleation is the initiation of a phase change in a small region, such as the formation of a solid crystal from a liquid solution. It is a consequence of rapid local fluctuations on a molecular scale in a homogeneous phase that is in a state of metastable equilibrium. Total nucleation is the sum effect of two categories of nucleation - primary and secondary. [Pg.27]

Due to the steep increase of the nucleation rate with supersaturation, primary nucleation in technical system can be differentiated into two categories has-not-yet-occurred and has-occurred. Two types of descriptions are used to quantify the effects of nucleation for a system with a constantly increased supersaturation, the metastable zone width is used for a system with constant supersaturation, the induction time is used. [Pg.21]

See other pages where Nucleation primary, categories is mentioned: [Pg.234]    [Pg.208]    [Pg.27]    [Pg.208]    [Pg.296]    [Pg.370]    [Pg.3333]    [Pg.545]    [Pg.195]    [Pg.27]   
See also in sourсe #XX -- [ Pg.20 ]



SEARCH



Nucleation primary

© 2024 chempedia.info